Opportunistic networks is a network paradigm designed for disconnected
networks. Message delivery in Opportunistic networks relies on the
mobility of carriers, hosts that carry messages from a network partition
to another. This makes message delivery as one of the major challenges
in these networks. In order to deal with the lack of end-to-end
connectivity between nodes, routing is often performed in a store and
forward way, where a message is stored by intermediary nodes and
forwarded to nodes closer and closer to the destination until the latter
is eventually reached. On the other hand, in real-life environments,
from the viewpoint of hosts, the resources are limited and valuable.
Thus hosts maybe do not cooperate in such process and endanger
communication among partitions. Therefore, an effective routing
architecure, which can effectively route messsages and encourage the
cooperation between nodes, is eager to be proposed.